Hi, our basset hound whos 2yrs 6 months started with idiopathic epilepsy in October last year. The vet we were using started him on Pexion 800mg BD. If anything he became much worse having cluster seizures 5 or 6 every 8 days. We recently changed vets and Sulli was put onto Phenobarbatil 5 days ago. Hes uncoordinated, his sight seems affected , restless, pacing, urinating +++. Can anyone give me any suggestions as to when these side effects may diminish.